Numerical simulation results agree with experimental results, both of which show that velocity of consolidation wave in grouted rock bolt are related to the anchoring strength of fresh concrete.
都显示锚杆中锚固段的应力波波速(固结波速)和锚固介质的强度直接相关,固结波速和锚固介质强度之间成抛物线关系。
During the anchoring and shotcreting construction at the rock heading blast advancement face, problems such as support strength can not be guaranteed or engineering quality uneasy to control exist.
岩巷炮掘工作面的锚喷施工存在支护强度得不到保证、工程质量不易控制等问题。
The compression strength and the bending rigidity of the refractory materials made from nano-clay modified phenolic resin anchoring agent were both improved.
采用这种结合剂所制得的无定形捣打料和铝碳砖的耐压强度以及抗弯刚度均得到较大提高。
When anchorage length reaches a constant value, the increase of anchoring strength is limited although with further increase of anchorage length.
当锚固长度达一定值时,再进一步增加锚固长度,锚固力的增大是非常有限的;
The bond-anchoring strength of rebar (whether transverse ribs distributed symmetrically or not) increased with increase in concrete strength when they had the same of anchorage length.
粘结锚固长度相同时,无论是横肋对称还是横肋非对称钢筋粘结强度随混凝土强度的提高而提高。
Based on the test results from several anchoring projects, the deformation and strength character of the rock model of cracked structure reinforced by the bolt is studied.
根据多种锚固方案试件的试验结果,研究了锚杆锚固碎裂结构岩体模型的强度变形特征。
The mix proportion of the anchoring material is determined by experiments. The compressive strength, adhesive force to concrete, volume stability and anchoring force with steel bar are studied.
通过试验确定无机锚固材料的配合比,并对其抗压强度、与混凝土的粘结强度、体积稳定性、对钢筋的锚固力进行研究。
The new developed HF high-performance grouting stuffing has such properties as high early strength, high-strength and durability so as to provide grouting with relatively great anchoring strength.
研制的HF高强灌浆料具有早强、高强、耐久性好等特点,使灌浆料具有较强的锚固能力。
The adhesion mechanism of para-disubstitution phenolic adhesives for rubber and polyester cords is presented. (1) coarse mechanical anchoring strength in structure of cords;
提出了橡胶和聚酯帘子线粘合的机理:(1)粘合剂对纤维表面的机械粘合力;
The second support structure with high stiffness appears in this range. The whole strength and stability in the anchoring range of rock bolts is enhanced greatly.
因此,对锚杆支护系统的刚度要求较高,特别是锚杆预紧力起着决定性作用。
The second support structure with high stiffness appears in this range. The whole strength and stability in the anchoring range of rock bolts is enhanced greatly.
因此,对锚杆支护系统的刚度要求较高,特别是锚杆预紧力起着决定性作用。
应用推荐